feat(server): 新增智能体运行服务，优化知识库索引存储结构，增强运行时状态管理

server/storage/knowledge/.llm_wiki/documents/bf761bd8eccf402bb676423d64401a56/document.json

@@ -6,9 +6,18 @@
   "checksum": "67a74538bce0dec71ccbb947256cc2c9c0e672d148de49406b967ae1379dbece",
   "extracted_text_path": "/app/server/storage/knowledge/.llm_wiki/documents/bf761bd8eccf402bb676423d64401a56/text.md",
   "chunk_count": 63,
+  "candidate_chunk_count": 39,
+  "filtered_chunk_count": 24,
+  "group_count": 20,
+  "successful_group_count": 0,
+  "failed_group_count": 20,
   "knowledge_candidate_count": 1,
+  "formal_knowledge_candidate_count": 0,
+  "fallback_knowledge_candidate_count": 1,
   "rule_candidate_count": 0,
-  "updated_at": "2026-05-15T06:24:57.093512+00:00",
+  "quality_status": "fallback_only",
+  "quality_note": "Hermes 未形成正式知识候选，当前仅保留降级兜底预览，不能作为正式知识上线。",
+  "updated_at": "2026-05-15T07:45:27.632833+00:00",
   "signature": {
     "document_id": "bf761bd8eccf402bb676423d64401a56",
     "original_name": "远光《公司支出管理办法（2024）》.pdf",
@@ -17,5 +26,5 @@
     "version_number": 1,
     "updated_at": "2026-05-09T08:39:53.788042+00:00"
   },
-  "sync_reason": "initial_build"
+  "sync_reason": "forced_rebuild"
 }